Mark 1:15, Matthew 6:10, Matthew 5:3-12
The Kingdom Is the Central Message
The kingdom of God was the central theme of Jesus' preaching: "The kingdom of God is at hand; repent and believe in the gospel." (Mark 1:15). It was also the focus of His post-resurrection teaching — "He appeared to them over a period of forty days and spoke about the kingdom of God." (Acts 1:3).
Understanding the kingdom is essential to understanding the church.
What the Kingdom Is
The kingdom of God is not primarily a territory or an institution — it is the active reign of God. Where God rules, there the kingdom is. Jesus announced that this kingdom had arrived in a new and decisive way in His own person and ministry: the blind received sight, the lame walked, the dead were raised, the poor heard good news (Luke 7:22) — all signs that God's saving reign had broken into human history.
The kingdom is both already and not yet:
- **Already** — inaugurated in Christ's first coming, present now wherever the Spirit rules in human hearts and communities
- **Not yet** — not yet fully consummated; the kingdom will be complete only when Christ returns and makes all things new
How the Church Relates to the Kingdom
The church is not the kingdom — the kingdom is bigger than the church. The kingdom is active wherever God's reign is acknowledged; the church is the specific community of those who have been called out of the world to follow Christ.
But the church serves the kingdom:
- **As a sign** — the church's life together is a visible preview of kingdom life: reconciliation, justice, love across dividing lines
- **As an instrument** — the church proclaims the kingdom's arrival and calls people to enter it through repentance and faith
- **As a foretaste** — in its worship, community, and service, the church offers glimpses of what the fully consummated kingdom will look like
Kingdom Ethics
Because the kingdom has broken in with Christ, kingdom values are meant to shape the church's common life now. The Beatitudes (Matthew 5:3-12) describe the character of those who belong to the kingdom. The Sermon on the Mount describes kingdom ethics — a higher righteousness that surpasses external rule-keeping and reaches to the heart.